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EP3468042A4 - Conversion module and conversion circuit - Google Patents

Conversion module and conversion circuit Download PDF

Info

Publication number
EP3468042A4
EP3468042A4 EP17908100.5A EP17908100A EP3468042A4 EP 3468042 A4 EP3468042 A4 EP 3468042A4 EP 17908100 A EP17908100 A EP 17908100A EP 3468042 A4 EP3468042 A4 EP 3468042A4
Authority
EP
European Patent Office
Prior art keywords
conversion
module
circuit
conversion circuit
conversion module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17908100.5A
Other languages
German (de)
French (fr)
Other versions
EP3468042A1 (en
Inventor
Ya-nan WEN
Yingsi LIANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Goodix Technology Co Ltd
Original Assignee
Shenzhen Goodix Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Goodix Technology Co Ltd filed Critical Shenzhen Goodix Technology Co Ltd
Publication of EP3468042A1 publication Critical patent/EP3468042A1/en
Publication of EP3468042A4 publication Critical patent/EP3468042A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08Continuously compensating for, or preventing, undesired influence of physical parameters of noise
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/39Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/424Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a multiple bit one
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/39Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
    • H03M3/45Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with distributed feedforward inputs, i.e. with forward paths from the modulator input to more than one filter stage
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/39Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
    • H03M3/452Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with weighted feedforward summation, i.e. with feedforward paths from more than one filter stage to the quantiser input
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/39Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
    • H03M3/454Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/39Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/456Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a first order loop filter in the feedforward path
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/458Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/46Analogue/digital converters using delta-sigma modulation as an intermediate step using a combination of at least one delta-sigma modulator in series with at least one analogue/digital converter of a different type
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/458Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/462Details relating to the decimation process
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002Conversion to or from differential modulation
    • H03M7/3004Digital delta-sigma modulation
    • H03M7/3015Structural details of digital delta-sigma modulators
    • H03M7/302Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M7/3024Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M7/3026Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a multiple bit one

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP17908100.5A 2017-08-08 2017-08-08 Conversion module and conversion circuit Withdrawn EP3468042A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/096472 WO2019028681A1 (en) 2017-08-08 2017-08-08 Conversion module and conversion circuit

Publications (2)

Publication Number Publication Date
EP3468042A1 EP3468042A1 (en) 2019-04-10
EP3468042A4 true EP3468042A4 (en) 2019-07-24

Family

ID=65273117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17908100.5A Withdrawn EP3468042A4 (en) 2017-08-08 2017-08-08 Conversion module and conversion circuit

Country Status (4)

Country Link
US (1) US10566986B2 (en)
EP (1) EP3468042A4 (en)
CN (1) CN109644004B (en)
WO (1) WO2019028681A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050122241A1 (en) * 2003-12-05 2005-06-09 Magrath Anthony J. Word length reduction circuit
US6958717B1 (en) * 2003-08-25 2005-10-25 Analog Devices, Inc. Method and apparatus for interconnecting analog and digital sections of A/D and D/A converters
US7978113B2 (en) * 2009-09-10 2011-07-12 National Semiconductor Corporation Analog-to-digital converter having output data with reduced bit-width and related system and method
US20160309274A1 (en) * 2013-12-02 2016-10-20 Suzhou Sonavox Electronics Co., Ltd. Implementation method and device of multi-bit modulation-based digital speaker system

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0759233A1 (en) * 1994-05-11 1997-02-26 Analog Devices, Inc. Digital-to-digital conversion using nonuniform sample rates
US5731769A (en) * 1995-12-04 1998-03-24 Motorola, Inc. Multi-rate digital filter apparatus and method for sigma-delta conversion processes
US7158566B2 (en) * 2000-07-24 2007-01-02 Eric Morgan Dowling High-speed adaptive interconnect architecture with nonlinear error functions
US6839010B1 (en) * 2002-12-27 2005-01-04 Zilog, Inc. Sigma-delta analog-to-digital converter with reduced quantization noise
KR20060014028A (en) * 2003-03-28 2006-02-14 이에스에스 테크놀로지, 인크. Bi-quad digital filter configured with a bit binary rate multiplier
DE102005057768B4 (en) * 2005-12-02 2012-01-12 Xignal Technologies Ag Time-continuous delta-sigma analog-to-digital converter
JP2009290455A (en) * 2008-05-28 2009-12-10 Toshiba Corp Dem system, delta-sigma a/d converter, and receiver
TWI398104B (en) * 2009-12-30 2013-06-01 Univ Nat Taiwan Modulator with loop-delay compensation
US8665126B2 (en) * 2010-12-08 2014-03-04 National Semiconductor Corporation ΣΔ difference-of-squares LOG-RMS to DC converter with forward and feedback paths signal squaring
TW201246804A (en) * 2011-05-05 2012-11-16 Univ Nat Taiwan Delta-sigma ADC modulator with excess loop delay compensation
EP2904963B1 (en) * 2014-02-06 2017-01-25 IMEC vzw System and method for acquisition of biopotential signals with motion artifact reduction in real time operation
US9401728B2 (en) * 2014-12-16 2016-07-26 Freescale Semiconductor, Inc. Test signal generator for sigma-delta ADC
CN104581589B (en) * 2014-12-31 2018-01-02 苏州上声电子有限公司 Channel status choosing method and device based on tri-state coding
EP3278457B1 (en) * 2015-04-01 2021-01-06 TDK Corporation Sigma-delta modulator arrangement, method and control apparatus for calibrating a continuous-time sigma-delta modulator
US9742430B1 (en) * 2016-08-19 2017-08-22 Infineon Technologies Ag System and method for analog to digital conversion
US10608852B2 (en) * 2017-11-14 2020-03-31 Cable Television Laboratories, Inc Systems and methods for delta-sigma digitization
US10348326B2 (en) * 2017-10-23 2019-07-09 Infineon Technologies Ag Digital silicon microphone with interpolation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6958717B1 (en) * 2003-08-25 2005-10-25 Analog Devices, Inc. Method and apparatus for interconnecting analog and digital sections of A/D and D/A converters
US20050122241A1 (en) * 2003-12-05 2005-06-09 Magrath Anthony J. Word length reduction circuit
US7978113B2 (en) * 2009-09-10 2011-07-12 National Semiconductor Corporation Analog-to-digital converter having output data with reduced bit-width and related system and method
US20160309274A1 (en) * 2013-12-02 2016-10-20 Suzhou Sonavox Electronics Co., Ltd. Implementation method and device of multi-bit modulation-based digital speaker system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019028681A1 *

Also Published As

Publication number Publication date
CN109644004B (en) 2023-05-26
US10566986B2 (en) 2020-02-18
US20190074843A1 (en) 2019-03-07
CN109644004A (en) 2019-04-16
WO2019028681A1 (en) 2019-02-14
EP3468042A1 (en) 2019-04-10

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